公开(公告)号：US20240166782A1

公开(公告)日：2024-05-23

申请号：US18550481

申请日：2022-06-06

Applicant: Dow Global Technologies LLC

Inventor： Bharat I. Chaudhary ,  Kurt A. Bolz, III ,  Peter C. Dreux ,  Venkata Krishna Sai Pappu ,  Arkady L. Krasovskiy

IPC: C08F210/02 ,  C08K3/04 ,  C08L23/08 ,  C09D123/08 ,  H01B3/44

CPC classification number: C08F210/02 ,  C08K3/04 ,  C08L23/0892 ,  C09D123/0892 ,  H01B3/441 ,  H01B7/295

Abstract: A polymeric composition includes an ethylene-silane copolymer comprising units derived from ethylene monomer and a silane monomer, wherein the ethylene-silane copolymer has a copolymerized silane content from 0.48 mol % to 1.00 mol %, a Brønsted acid catalyst and a filler comprising one or more of a flame retardant and carbon black. A Filler to Catalyst Weight Ratio is from 75 to 1000.

公开(公告)号：US11981798B2

公开(公告)日：2024-05-14

申请号：US17442991

申请日：2020-02-11

Applicant: Dow Global Technologies LLC

Inventor： Bharat I. Chaudhary ,  Sarat Munjal ,  Rajesh P. Paradkar ,  Arkady L. Krasovskiy ,  Manish Talreja ,  Manish K. Mundra ,  Kevin P. Rogers ,  Bruce M. Hasch

IPC: C08L23/00 ,  C08J3/24 ,  C08K5/14 ,  C08K5/57 ,  C08L23/08

CPC classification number: C08L23/0892 ,  C08J3/24 ,  C08K5/14 ,  C08K5/57 ,  C08L2203/202 ,  C08L2207/066

Abstract: A moisture-curable polyethylene formulation comprising a (hydrolyzable silyl group)-functional polyethylene copolymer and a condensation cure catalyst. The formulation is designed to be rapidly moisture curable under ambient conditions. Also methods of making and using same; cured polymer products made therefrom; and articles containing or made from same.

公开(公告)号：US20240071645A1

公开(公告)日：2024-02-29

申请号：US18259862

申请日：2022-03-23

Applicant: Dow Global Technologies LLC

Inventor： Paul J. Caronia ,  Jeffrey M. Cogen ,  Bharat I. Chaudhary ,  Timothy J. Person ,  Suh Joon Han

IPC: H01B3/44 ,  C08K3/04 ,  C08L23/08 ,  C09D123/08 ,  H01B13/14

CPC classification number: H01B3/441 ,  C08K3/04 ,  C08L23/0892 ,  C09D123/0892 ,  H01B13/14 ,  C08K2201/006 ,  C08L2310/00

Abstract: A moisture-curable semiconductive formulation consisting essentially of a mixture of an ethylene/(alkenyl-functional hydrolyzable silane)/(optional olefinic hydrocarbon) copolymer and a conventional carbon black. Also discovered methods of making and using same, a moisture-cured semiconductive product made therefrom, and articles containing or made from same.

公开(公告)号：US20230250301A1

公开(公告)日：2023-08-10

申请号：US18004686

申请日：2021-10-25

Applicant: Dow Global Technologies LLC

Inventor： Krischan Jeltsch ,  Bharat I. Chaudhary ,  Bhawesh Kumar ,  Svyatoslav Burmistrov ,  David Lopez Piquer ,  Camillo Cardelli

IPC: C09D5/18 ,  C09D123/06 ,  C09D7/61 ,  H01B3/44 ,  H01B7/295

CPC classification number: C09D5/18 ,  C09D123/06 ,  C09D7/61 ,  H01B3/441 ,  H01B7/295

Abstract: A polymeric composition includes a first ethylene-based polymer having a crystallinity at 110° C. of 25 wt % or greater as measured according to Crystallinity Testing; a second ethylene-based polymer having a crystallinity at 23° C. of 40 wt % or less as measured according to Crystallinity Testing; and 40 wt % or greater of a halogen-free flame retardant filler.

公开(公告)号：US11674028B2

公开(公告)日：2023-06-13

申请号：US17091187

申请日：2020-11-06

Applicant: Dow Global Technologies LLC

Inventor： Bharat I. Chaudhary ,  Christopher R. Eddy ,  Sarat Munjal ,  Kalyan Sehanobish ,  Hayley Brown ,  John O. Osby ,  Jose Ortega

IPC: C08L23/26 ,  C08L23/08 ,  C08F2/01 ,  C08J3/24 ,  H01B3/30 ,  C08K5/14

CPC classification number: C08L23/26 ,  C08F2/01 ,  C08J3/24 ,  C08K5/14 ,  C08L23/0846 ,  H01B3/307 ,  C08F2500/11 ,  C08K5/14 ,  C08L23/26 ,  C08F210/02 ,  C08F2/02 ,  C08F210/02 ,  C08F2500/09 ,  C08F2500/11 ,  C08F2500/12 ,  C08F2500/17

Abstract: An insulated wire or cable is made by a process comprising the steps of:



(A) extruding onto a covered or uncovered metal conductor or optical fiber a composition having a DF measured at 130° C. (60 Hz, 2 kV) or 120° C. (60 Hz, 8 kV) or 100° C. (60 Hz, 8 kV) of ≤0.5% and comprising:

(1) a high melt strength ethylene-based polymer made in a tubular reactor, and
(2) a peroxide, and


(B) crosslinking the high melt strength ethylene-based polymer.

公开(公告)号：US20230159730A1

公开(公告)日：2023-05-25

申请号：US17921754

申请日：2021-07-26

Applicant: Dow Global Technologies LLC

Inventor： Stacey A. Saba ,  Paul J. Brigandi ,  Mohamed Esseghir ,  Bharat I. Chaudhary

IPC: C08L23/06 ,  C08K3/04 ,  H01B3/30

CPC classification number: C08L23/06 ,  C08K3/04 ,  H01B3/307 ,  C08L2203/206

Abstract: A polymeric composition includes an ethylene polymer, 0.05 wt % to 0.25 wt % carbon black based on a total weight of the polymeric composition and a polymeric ultraviolet light stabilizer including a hindered amine moiety and having a weight average molecular weight from 5,000 g/mol to 20,000 g/mol as measured according to Gel Permeation Chromatography.

公开(公告)号：US20230130450A1

公开(公告)日：2023-04-27

申请号：US17918183

申请日：2021-07-01

Applicant: Dow Global Technologies LLC

Inventor： Chongsoo Lim ,  Andrew B. Shah ,  Bharat I. Chaudhary

IPC: C08L23/08 ,  C08J3/20 ,  C09D123/26 ,  H01B7/295 ,  H01B3/44

Abstract: A method of melt blending a flame-retardant composition includes the steps: (a) heating a polymeric brominated flame retardant to a temperature of 5° C. or greater above the polymeric brominated flame retardants glass transition temperature as measured by Differential Scanning calorimetry, wherein the polymeric brominated flame retardant has a Temperature of 5% Mass Loss from 300° C. to 700° C. as measured according to Thermogravimetric Analysis; (b) mixing a polyolefin into the polymeric brominated flame retardant after step (a); and (c) mixing an inorganic filler into the polyolefin and polymeric brominated flame retardant after step (b) to form the flame-retardant composition.

公开(公告)号：US11613045B2

公开(公告)日：2023-03-28

申请号：US16641388

申请日：2018-08-27

Applicant: Dow Global Technologies LLC

Inventor： Qian Gou ,  Neil W. Dunchus ,  Bharat I. Chaudhary

IPC: B29B7/00 ,  B29C48/285 ,  B29C48/00 ,  B29C48/36 ,  B29C48/78 ,  C08J3/20 ,  C08K5/14 ,  B29C48/29 ,  B29K23/00

Abstract: Rheology-modified, additive-containing ethylenic polymer compositions are prepared in a continuously operated extruder comprising first, second and third zones by a process comprising the steps of: mixing in the second zone of the extruder an ethylenic polymer and a high-temperature decomposing peroxide at a temperature such that the half-life of the peroxide is equal to or greater than one minute and for a sufficient period of time to modify the rheology of the ethylenic polymer to produce a rheology-modified, melted ethylenic polymer for transfer to the third zone of the extruder; and adding to the third zone one or more additives to the rheology-modified, melted ethylenic polymer to produce the rheology-modified, additive-containing ethylenic polymer.

公开(公告)号：US20220008896A1

公开(公告)日：2022-01-13

申请号：US17429563

申请日：2020-02-20

Applicant: Dow Global Technologies LLC

Inventor： Raghunath Roy ,  Bharat I. Chaudhary ,  Manish K. Mundra ,  Jeffrey M. Cogen

IPC: B01J23/06 ,  B01J31/22 ,  C08L23/06 ,  C08L23/08 ,  B01J21/06 ,  C08J3/22 ,  C08L23/26

Abstract: A catalyst system comprising a combination of a tin-based moisture-cure catalyst, a titanium(IV) compound that is titanium dioxide or a titanium alkoxide, and zinc oxide. A catalyst masterbatch comprising the catalyst system and a carrier resin. A moisture-curable prepolymer formulation comprising the catalyst masterbatch and a (hydrolyzable silyl group)-functional polyolefin prepolymer. Methods of making and using same. Cured polymer products made therefrom. Articles containing or made from same.

公开(公告)号：US20210363277A1

公开(公告)日：2021-11-25

申请号：US17291408

申请日：2019-11-11

Applicant: Dow Global Technologies LLC ,  Performance Materials NA, Inc.

Inventor： Bharat I. Chaudhary ,  Bruce Michael Hasch ,  Sarat Munjal ,  Christopher Eddy ,  Kevin Paul Rogers ,  Rajesh P. Paradkar ,  Arkady Krasovskiy ,  Manish Talreja ,  Saurav S. Sengupta

IPC: C08F210/02 ,  C08L23/08 ,  H01B3/44

Abstract: A copolymer of ethylene and hydrolysable silane includes from 0.1 wt % to 5.0 wt % hydrolysable silane groups and has a Mz(abs)/Mw(abs) of less than or equal to 9.5; a ratio of Mz(abs)/Mw(abs) to polydispersity of less than or equal to 1.5; a polydispersity of 6.6 or greater; a Density×Polydispersity of 6.0 or greater; or an Amorphous Content at Room Temperature×Polydispersity of 360 or greater. Methods for forming a moisture-crosslinkable polymer composition include forming a copolymer of ethylene and hydrolysable silane at a polymerization temperature of greater than or equal to 180° C. to less than or equal to 400° C. at a pressure from 5,000 psi to 50,000 psi; and adding a silanol condensation catalyst to the copolymer of ethylene and hydrolysable silane.